To TMG or UAG? for Exchange 2010? That is that question

When to use UAG for publishing Exchange 2010 and when to use TMG…..
 
 
Read the full article here….
 

Here is a whitepaper explaining UAG vs. TMG options with further details:
://www.microsoft.com/downloads/details.aspx?FamilyID=894bab3e-c910-4c97-ab22-59e91421e022&displaylang=en